Home / 28,074.33-38,740.91-15,324.98

Finding the Fourth Proportional to 28,074.33, 38,740.91 and 15,324.98

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Solution

The fourth proportional to 28,074.33, 38,740.91 and 15,324.98 is: 21,147.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,074.33 : 38,740.91 = 15,324.98 : x
  2. Step 2: Convert to fraction form
    28,074.33/38,740.91 = 15,324.98/x
  3. Step 3: Cross multiply
    28,074.33x = 38,740.91 × 15,324.98
  4. Step 4: Simplify right side
    28,074.33x = 593,703,400.60
  5. Step 5: Solve for x
    x = 593,703,400.60/28,074.33
  6. Step 6: Final answer
    x = 21,147.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.